From Longman Dictionary of Contemporary Englishhashhash1 /hæʃ/ noun 1 → make a hash of something2 [uncountable] informalMDD hashish3 [countable, uncountable]DFF a dish made with cooked meat and potatoes corned beef hash4 [countable, uncountable] British English the symbol #
Examples from the Corpus
hash• I do canned corned beef hash too.• corned-beef hash• The presents are unwrapped, the holiday turkey is hash, and the carols have all been sung.• The smell of hash is strong.• With uh, with some hash and then some tobacco.corned beef hash• I do canned corned beef hash too.• The Rose Room still serves made-from-scratch corned beef hash and every member of the staff is still consummately professional.• My favorite was corned beef hash.hashhash2 verb → hash something ↔ out→ See Verb tableExamples from the Corpus
hash• The process is often also described as hashing.• On the radio, the same things get hashed and rehashed, over and over, day after day.• Company hopes to hash out an expansion agreement with venture capital groups in the next few months.• After signing a cooperation agreement May 11, the two airlines have been hashing out details.• As we hashed out the deal, people on the trading floor began to grow curious.Origin hash1 1. (1600-1700) → HASH22. (1900-2000) hashish3. (1900-2000) Probably from hatching hash2 (1500-1600) French hacher “to cut up”, from hache; → HATCHET 